NO338111B1 - Fremgangsmåte for gjenvinning av industrielt karbonmaterial - Google Patents
Fremgangsmåte for gjenvinning av industrielt karbonmaterial Download PDFInfo
- Publication number
- NO338111B1 NO338111B1 NO20084405A NO20084405A NO338111B1 NO 338111 B1 NO338111 B1 NO 338111B1 NO 20084405 A NO20084405 A NO 20084405A NO 20084405 A NO20084405 A NO 20084405A NO 338111 B1 NO338111 B1 NO 338111B1
- Authority
- NO
- Norway
- Prior art keywords
- fraction
- effluent
- industrial carbon
- recovered
- drilling
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000003575 carbonaceous material Substances 0.000 title claims description 7
- 238000011084 recovery Methods 0.000 title abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 197
- 239000002245 particle Substances 0.000 claims abstract description 127
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000012530 fluid Substances 0.000 claims abstract description 118
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 111
- 239000010802 sludge Substances 0.000 claims abstract description 53
- 239000007787 solid Substances 0.000 claims abstract description 45
- 239000000203 mixture Substances 0.000 claims abstract description 43
- 238000004064 recycling Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims description 62
- 150000001336 alkenes Chemical class 0.000 claims description 7
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 7
- 238000011282 treatment Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims 2
- 210000000540 fraction c Anatomy 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 142
- 230000000996 additive effect Effects 0.000 abstract description 54
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 48
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 24
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052796 boron Inorganic materials 0.000 abstract description 7
- 229920002994 synthetic fiber Polymers 0.000 abstract description 5
- 239000012209 synthetic fiber Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 56
- 230000015572 biosynthetic process Effects 0.000 description 21
- 238000005755 formation reaction Methods 0.000 description 21
- 239000004927 clay Substances 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 239000004576 sand Substances 0.000 description 16
- 239000000835 fiber Substances 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 12
- 239000010439 graphite Substances 0.000 description 11
- 229910002804 graphite Inorganic materials 0.000 description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 239000010428 baryte Substances 0.000 description 8
- 229910052601 baryte Inorganic materials 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
- 239000011707 mineral Substances 0.000 description 8
- 239000012065 filter cake Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 229920003043 Cellulose fiber Polymers 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000004005 microsphere Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 150000004676 glycans Chemical class 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000432 density-gradient centrifugation Methods 0.000 description 2
- -1 flakes Substances 0.000 description 2
- 239000012770 industrial material Substances 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000005020 Acaciella glauca Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241000609240 Ambelania acida Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012897 dilution medium Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000003499 redwood Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Earth Drilling (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/387,442 US7438142B2 (en) | 2006-03-23 | 2006-03-23 | Recovery system |
| US11/535,028 US7520342B2 (en) | 2006-03-23 | 2006-09-25 | Recovery system |
| PCT/US2007/064831 WO2007109803A2 (fr) | 2006-03-23 | 2007-03-23 | Système de récupération |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO20084405L NO20084405L (no) | 2008-12-19 |
| NO338111B1 true NO338111B1 (no) | 2016-08-01 |
Family
ID=38523338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20084405A NO338111B1 (no) | 2006-03-23 | 2008-10-20 | Fremgangsmåte for gjenvinning av industrielt karbonmaterial |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7520342B2 (fr) |
| EP (1) | EP1996521B1 (fr) |
| AU (1) | AU2007227385B2 (fr) |
| BR (1) | BRPI0709122A2 (fr) |
| CA (1) | CA2646998C (fr) |
| EA (1) | EA015755B1 (fr) |
| MX (1) | MX2008012005A (fr) |
| NO (1) | NO338111B1 (fr) |
| WO (1) | WO2007109803A2 (fr) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8453844B2 (en) * | 2003-06-12 | 2013-06-04 | Axiom Process Ltd. | Screening system |
| US8083935B2 (en) * | 2007-01-31 | 2011-12-27 | M-I Llc | Cuttings vessels for recycling oil based mud and water |
| US7731854B1 (en) * | 2007-02-15 | 2010-06-08 | H2O Tech, Inc. | Situ system and method for treating an oil and gas well drilling fluid |
| US7568535B2 (en) * | 2007-12-11 | 2009-08-04 | National Oilwell Varco Lp | Methods for recovery and reuse of lost circulation material |
| US8132632B2 (en) * | 2008-04-18 | 2012-03-13 | Conocophillips Company | Method for recovering valuable drilling mud materials using a binary fluid |
| US8002050B2 (en) * | 2008-05-06 | 2011-08-23 | Frazier W Lynn | Completion technique and treatment of drilled solids |
| US8834726B2 (en) * | 2008-11-19 | 2014-09-16 | Prochemtech International, Inc. | Treatment of gas well hydrofracture wastewaters |
| CN102574022B (zh) * | 2009-06-25 | 2015-06-10 | 弗拉克普尔控股有限责任公司 | 从压裂水/废水制备纯盐的方法 |
| US8708159B2 (en) * | 2011-02-16 | 2014-04-29 | Oakwood Laboratories, Llc | Manufacture of microspheres using a hydrocyclone |
| US9580343B2 (en) | 2011-08-31 | 2017-02-28 | Prochemtech International, Inc. | Treatment of gas well production wastewaters |
| US8877690B2 (en) | 2011-08-31 | 2014-11-04 | Prochemtech International, Inc. | Treatment of gas well production wastewaters |
| US9796612B2 (en) | 2012-06-21 | 2017-10-24 | Eureka Resources, Llc | Method and system for treating wastewater |
| US8424784B1 (en) | 2012-07-27 | 2013-04-23 | MBJ Water Partners | Fracture water treatment method and system |
| US9896918B2 (en) | 2012-07-27 | 2018-02-20 | Mbl Water Partners, Llc | Use of ionized water in hydraulic fracturing |
| US20150000702A1 (en) * | 2013-06-27 | 2015-01-01 | David McMillian | System and method for cleaning fracking sand |
| US10012043B1 (en) * | 2013-12-06 | 2018-07-03 | Fsi Holdings, Llc | Process and system for recovery of solids from a drilling fluid |
| KR102203742B1 (ko) * | 2013-12-16 | 2021-01-15 | 대우조선해양 주식회사 | 이수손실 방지제 회수 모듈 및 머드액 순환 시스템 |
| US10161204B2 (en) * | 2014-10-31 | 2018-12-25 | Canadian Energy Services L.P. | Treatment of heavy oil cuttings for disposal |
| WO2016077521A1 (fr) * | 2014-11-12 | 2016-05-19 | Covar Applied Technologies, Inc. | Système et procédé pour la mesure de caractéristiques de déblai de forage et d'emplacement avant de fluide pendant des opérations de forage avec vision par ordinateur |
| CN104912503A (zh) * | 2015-05-12 | 2015-09-16 | 郭丹阳 | 一种环保式钻井液循环净化系统新工艺 |
| US10202286B2 (en) | 2015-06-22 | 2019-02-12 | Eureka Resources, Llc | Method and system for treating wastewater |
| WO2017099705A1 (fr) * | 2015-12-07 | 2017-06-15 | Halliburton Energy Services, Inc. | Traitement de produits solides commercialisés récupérés pour une utilisation dans des fluides pétroliers |
| CA3001458A1 (fr) * | 2015-12-07 | 2017-06-15 | Halliburton Energy Services, Inc. | Valorisation d'agents alourdissant |
| DK3231983T3 (da) * | 2016-04-11 | 2020-09-21 | Max Wild Gmbh | Fremgangsmåde til behandling og genanvendelse af boreslam |
| CN107165593A (zh) * | 2017-05-09 | 2017-09-15 | 中石化石油工程技术服务有限公司 | 页岩气井油基岩屑的清洗方法 |
| CN109296354A (zh) * | 2018-10-18 | 2019-02-01 | 中国石油化工股份有限公司 | 地层砂粒径参数计算方法及系统 |
| CN110117104A (zh) * | 2019-06-12 | 2019-08-13 | 陕西国防工业职业技术学院 | 一种含油水基钻井废弃泥浆无害化处理工艺 |
| US11821298B1 (en) * | 2022-06-28 | 2023-11-21 | Halliburton Energy Services, Inc. | Onsite processing of oversized proppant debris to pumpable material size |
| CN116712760B (zh) * | 2023-08-08 | 2023-10-03 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | 一种加重钻井泥浆循环分离加重物料方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2919898A (en) * | 1957-08-16 | 1960-01-05 | Phillips Petroleum Co | Treatment of well drilling mud |
| US20020074269A1 (en) * | 2000-12-19 | 2002-06-20 | Hensley Gary L. | Method and system for the treatment of drilling mud |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766997A (en) * | 1973-03-02 | 1973-10-23 | Exxon Production Research Co | Method and apparatus for treating a drilling fluid |
| FR2381896A1 (fr) | 1977-02-24 | 1978-09-22 | Elf Aquitaine | Recuperation des fluides de forage |
| US4116288A (en) * | 1977-04-18 | 1978-09-26 | The Brandt Company | Method and apparatus for continuously separating lost circulating material from drilling fluid |
| US4482459A (en) * | 1983-04-27 | 1984-11-13 | Newpark Waste Treatment Systems Inc. | Continuous process for the reclamation of waste drilling fluids |
| NL8602703A (nl) * | 1986-06-19 | 1988-01-18 | Mudcleaning Services | Werkwijze voor het winnen van een basissuspensie, die geschikt is voor het bereiden van een bij het roterend boren van een gat in de aardbodem te gebruiken boorspoelingsuspensie, uit bij het boren ontstane afgewerkte suspensie. |
| US4836302A (en) | 1986-12-03 | 1989-06-06 | Heilhecker Joe K | Apparatus and method for removing and recovering oil and/or other oil-based drilling mud additives from drill cuttings |
| US5996484A (en) | 1995-09-15 | 1999-12-07 | Reddoch; Jeffrey | Drilling fluid recovery defluidization system |
| US6177014B1 (en) | 1998-11-06 | 2001-01-23 | J. Leon Potter | Cesium formate drilling fluid recovery process |
| US6138834A (en) | 1999-01-08 | 2000-10-31 | Sun Drilling Corporation | Recovery apparatus for drilling and excavation application and related methods |
| IT1313622B1 (it) | 1999-09-09 | 2002-09-09 | Enitecnologie Spa | Metodo per la rimozione ed il recupero della componente oleosa dadetriti di perforazione |
| IT1319693B1 (it) | 2000-12-15 | 2003-10-23 | Eni Spa | Procedimento per la separazione di microsfere di vetro cave da fanghiche le contengono. |
| AU2002338477B2 (en) * | 2001-04-24 | 2008-01-24 | M-I L.L.C. | Method of recycling water contaminated oil based drilling fluid |
| US6881349B2 (en) * | 2002-11-15 | 2005-04-19 | M-I Llc | Method for recycling of oil based drilling fluid contaminated with water and water contaminated with oil based drilling fluid |
| US6892887B2 (en) | 2003-02-10 | 2005-05-17 | Alpine Mud Products Corp | Polymer drilling bead recovery system and related methods |
| US7077219B1 (en) * | 2005-02-18 | 2006-07-18 | Halliburton Energy Services, Inc. | Foamed treatment fluids and associated methods |
-
2006
- 2006-09-25 US US11/535,028 patent/US7520342B2/en not_active Expired - Fee Related
-
2007
- 2007-03-23 WO PCT/US2007/064831 patent/WO2007109803A2/fr active Application Filing
- 2007-03-23 CA CA2646998A patent/CA2646998C/fr not_active Expired - Fee Related
- 2007-03-23 MX MX2008012005A patent/MX2008012005A/es active IP Right Grant
- 2007-03-23 BR BRPI0709122-2A patent/BRPI0709122A2/pt not_active Application Discontinuation
- 2007-03-23 AU AU2007227385A patent/AU2007227385B2/en not_active Ceased
- 2007-03-23 EA EA200870367A patent/EA015755B1/ru not_active IP Right Cessation
- 2007-03-23 EP EP20070759288 patent/EP1996521B1/fr not_active Not-in-force
-
2008
- 2008-10-20 NO NO20084405A patent/NO338111B1/no not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2919898A (en) * | 1957-08-16 | 1960-01-05 | Phillips Petroleum Co | Treatment of well drilling mud |
| US20020074269A1 (en) * | 2000-12-19 | 2002-06-20 | Hensley Gary L. | Method and system for the treatment of drilling mud |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0709122A2 (pt) | 2011-06-28 |
| EA015755B1 (ru) | 2011-12-30 |
| EP1996521A4 (fr) | 2012-10-31 |
| MX2008012005A (es) | 2008-11-04 |
| EP1996521A2 (fr) | 2008-12-03 |
| AU2007227385A1 (en) | 2007-09-27 |
| US20070221411A1 (en) | 2007-09-27 |
| WO2007109803A2 (fr) | 2007-09-27 |
| US7520342B2 (en) | 2009-04-21 |
| EP1996521B1 (fr) | 2015-05-06 |
| NO20084405L (no) | 2008-12-19 |
| AU2007227385B2 (en) | 2010-12-09 |
| WO2007109803A3 (fr) | 2007-12-06 |
| EA200870367A1 (ru) | 2009-06-30 |
| CA2646998A1 (fr) | 2007-09-27 |
| CA2646998C (fr) | 2012-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CREP | Change of representative |
Representative=s name: MURGITROYD & COMPANY, MANNERHEIMSVAEGEN 12 B, 5TR, |
|
| MM1K | Lapsed by not paying the annual fees |